131980231 has 6 divisors (see below), whose sum is σ = 140200760. Its totient is φ = 124216416.

The previous prime is 131980217. The next prime is 131980249. The reversal of 131980231 is 132089131.

It is not a de Polignac number, because 131980231 - 2¹¹ = 131978183 is a prime.

It is a super-2 number, since 2×131980231² = 34837562749626722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131980231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131980031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 228051 + ... + 228628.

Almost surely, 2^131980231 is an apocalyptic number.

131980231 is a deficient number, since it is larger than the sum of its proper divisors (8220529).

131980231 is an equidigital number, since it uses as much as digits as its factorization.

131980231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456713 (or 456696 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 131980231 is about 11488.2649255664. The cubic root of 131980231 is about 509.1389173389.

Subtracting 131980231 from its reverse (132089131), we obtain a square (108900 = 330²).

The spelling of 131980231 in words is "one hundred thirty-one million, nine hundred eighty thousand, two hundred thirty-one".